vtkPointSmoothingFilter Class Reference

adjust point positions to form a pleasing, packed arrangement More...

#include <vtkPointSmoothingFilter.h>

Inheritance diagram for vtkPointSmoothingFilter:

Collaboration diagram for vtkPointSmoothingFilter:

Public Types
enum	{   DEFAULT_SMOOTHING = 0 , GEOMETRIC_SMOOTHING , UNIFORM_SMOOTHING , SCALAR_SMOOTHING ,   TENSOR_SMOOTHING , FRAME_FIELD_SMOOTHING }
	Specify how smoothing is to be controlled. More...
enum	{ UNCONSTRAINED_MOTION = 0 , PLANE_MOTION }
	Specify how point motion is to be constrained. More...
Public Types inherited from vtkPointSetAlgorithm
typedef vtkAlgorithm	Superclass
Public Types inherited from vtkAlgorithm
enum	DesiredOutputPrecision { SINGLE_PRECISION , DOUBLE_PRECISION , DEFAULT_PRECISION }
	Values used for setting the desired output precision for various algorithms. More...
typedef vtkObject	Superclass

Public Member Functions
virtual void	SetNeighborhoodSize (int)
	Specify the neighborhood size.
virtual int	GetNeighborhoodSize ()
	Specify the neighborhood size.
virtual void	SetSmoothingMode (int)
	Control how smoothing is to be performed.
virtual int	GetSmoothingMode ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToDefault ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToGeometric ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToUniform ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToScalars ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToTensors ()
	Control how smoothing is to be performed.
void	SetSmoothingModeToFrameField ()
	Control how smoothing is to be performed.
virtual void	SetFrameFieldArray (vtkDataArray *)
	Specify the name of the frame field to use for smoothing.
virtual vtkDataArray *	GetFrameFieldArray ()
	Specify the name of the frame field to use for smoothing.
virtual void	SetNumberOfIterations (int)
	Specify the number of smoothing iterations.
virtual int	GetNumberOfIterations ()
	Specify the number of smoothing iterations.
virtual void	SetNumberOfSubIterations (int)
	Specify the number of smoothing subiterations.
virtual int	GetNumberOfSubIterations ()
	Specify the number of smoothing subiterations.
virtual void	SetMaximumStepSize (double)
	Specify the maximum smoothing step size for each smoothing iteration.
virtual double	GetMaximumStepSize ()
	Specify the maximum smoothing step size for each smoothing iteration.
virtual void	SetConvergence (double)
	Specify a convergence criterion for the iteration process.
virtual double	GetConvergence ()
	Specify a convergence criterion for the iteration process.
virtual void	SetEnableConstraints (bool)
	Enable or disable constraints on points.
virtual bool	GetEnableConstraints ()
	Enable or disable constraints on points.
virtual void	EnableConstraintsOn ()
	Enable or disable constraints on points.
virtual void	EnableConstraintsOff ()
	Enable or disable constraints on points.
virtual void	SetFixedAngle (double)
	Enable or disable constraints on points.
virtual double	GetFixedAngle ()
	Enable or disable constraints on points.
virtual void	SetBoundaryAngle (double)
	Enable or disable constraints on points.
virtual double	GetBoundaryAngle ()
	Enable or disable constraints on points.
virtual void	SetGenerateConstraintScalars (bool)
	If point constraints are enabled, an output scalar indicating the classification of points can be generated.
virtual bool	GetGenerateConstraintScalars ()
	If point constraints are enabled, an output scalar indicating the classification of points can be generated.
virtual void	GenerateConstraintScalarsOn ()
	If point constraints are enabled, an output scalar indicating the classification of points can be generated.
virtual void	GenerateConstraintScalarsOff ()
	If point constraints are enabled, an output scalar indicating the classification of points can be generated.
virtual void	SetGenerateConstraintNormals (bool)
	If point constraints are enabled, an output vector indicating the average normal at each point can be generated.
virtual bool	GetGenerateConstraintNormals ()
	If point constraints are enabled, an output vector indicating the average normal at each point can be generated.
virtual void	GenerateConstraintNormalsOn ()
	If point constraints are enabled, an output vector indicating the average normal at each point can be generated.
virtual void	GenerateConstraintNormalsOff ()
	If point constraints are enabled, an output vector indicating the average normal at each point can be generated.
virtual void	SetComputePackingRadius (bool)
	Enable / disable the computation of a packing radius.
virtual bool	GetComputePackingRadius ()
	Enable / disable the computation of a packing radius.
virtual void	ComputePackingRadiusOn ()
	Enable / disable the computation of a packing radius.
virtual void	ComputePackingRadiusOff ()
	Enable / disable the computation of a packing radius.
virtual void	SetPackingRadius (double)
	Specify the packing radius R.
virtual double	GetPackingRadius ()
	Specify the packing radius R.
virtual void	SetPackingFactor (double)
	Specify the packing factor.
virtual double	GetPackingFactor ()
	Specify the packing factor.
virtual void	SetAttractionFactor (double)
	Control the relative distance of inter-particle attraction.
virtual double	GetAttractionFactor ()
	Control the relative distance of inter-particle attraction.
virtual void	SetMotionConstraint (int)
	Specify how to constrain the motion of points.
virtual int	GetMotionConstraint ()
	Specify how to constrain the motion of points.
void	SetMotionConstraintToUnconstrained ()
	Specify how to constrain the motion of points.
void	SetMotionConstraintToPlane ()
	Specify how to constrain the motion of points.
void	SetPlane (vtkPlane *)
	Specify the plane to which point motion is constrained.
virtual vtkPlane *	GetPlane ()
	Specify the plane to which point motion is constrained.
void	SetLocator (vtkAbstractPointLocator *locator)
	Specify a point locator.
virtual vtkAbstractPointLocator *	GetLocator ()
	Specify a point locator.
Public Member Functions inherited from vtkPointSetAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkPointSetAlgorithm *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
vtkPolyData *	GetPolyDataOutput ()
	Get the output as vtkPolyData.
vtkStructuredGrid *	GetStructuredGridOutput ()
	Get the output as vtkStructuredGrid.
vtkUnstructuredGrid *	GetUnstructuredGridOutput ()
	Get the output as vtkUnstructuredGrid.
vtkDataObject *	GetInput ()
vtkTypeBool	ProcessRequest (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector) override
	see vtkAlgorithm for details
vtkPointSet *	GetOutput ()
	Get the output data object for a port on this algorithm.
vtkPointSet *	GetOutput (int)
	Get the output data object for a port on this algorithm.
void	SetInputData (vtkDataObject *)
	Assign a data object as input.
void	SetInputData (int, vtkDataObject *)
	Assign a data object as input.
void	SetInputData (vtkPointSet *)
	Assign a data object as input.
void	SetInputData (int, vtkPointSet *)
	Assign a data object as input.
void	AddInputData (vtkDataObject *)
	Assign a data object as input.
void	AddInputData (vtkPointSet *)
	Assign a data object as input.
void	AddInputData (int, vtkPointSet *)
	Assign a data object as input.
void	AddInputData (int, vtkDataObject *)
	Assign a data object as input.
Public Member Functions inherited from vtkAlgorithm
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkAlgorithm *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
int	HasExecutive ()
	Check whether this algorithm has an assigned executive.
vtkExecutive *	GetExecutive ()
	Get this algorithm's executive.
virtual void	SetExecutive (vtkExecutive *executive)
	Set this algorithm's executive.
virtual vtkTypeBool	ProcessRequest (vtkInformation *request, vtkInformationVector **inInfo, vtkInformationVector *outInfo)
	Upstream/Downstream requests form the generalized interface through which executives invoke a algorithm's functionality.
vtkTypeBool	ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
	Version of ProcessRequest() that is wrapped.
virtual int	ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, vtkMTimeType *mtime)
	A special version of ProcessRequest meant specifically for the pipeline modified time request.
virtual int	ModifyRequest (vtkInformation *request, int when)
	This method gives the algorithm a chance to modify the contents of a request before or after (specified in the when argument) it is forwarded.
vtkInformation *	GetInputPortInformation (int port)
	Get the information object associated with an input port.
vtkInformation *	GetOutputPortInformation (int port)
	Get the information object associated with an output port.
int	GetNumberOfInputPorts ()
	Get the number of input ports used by the algorithm.
int	GetNumberOfOutputPorts ()
	Get the number of output ports provided by the algorithm.
void	SetProgress (double)
	SetProgress is deprecated.
void	UpdateProgress (double amount)
	Update the progress of the process object.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char *fieldAssociation, const char *attributeTypeorName)
	String based versions of SetInputArrayToProcess().
vtkInformation *	GetInputArrayInformation (int idx)
	Get the info object for the specified input array to this algorithm.
void	RemoveAllInputs ()
	Remove all the input data.
vtkDataObject *	GetOutputDataObject (int port)
	Get the data object that will contain the algorithm output for the given port.
vtkDataObject *	GetInputDataObject (int port, int connection)
	Get the data object that will contain the algorithm input for the given port and given connection.
virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
	Remove a connection from the given input port index.
virtual void	RemoveInputConnection (int port, int idx)
	Remove a connection given by index idx.
virtual void	RemoveAllInputConnections (int port)
	Removes all input connections.
virtual void	SetInputDataObject (int port, vtkDataObject *data)
	Sets the data-object as an input on the given port index.
virtual void	SetInputDataObject (vtkDataObject *data)
virtual void	AddInputDataObject (int port, vtkDataObject *data)
	Add the data-object as an input to this given port.
virtual void	AddInputDataObject (vtkDataObject *data)
vtkAlgorithmOutput *	GetOutputPort (int index)
	Get a proxy object corresponding to the given output port of this algorithm.
vtkAlgorithmOutput *	GetOutputPort ()
int	GetNumberOfInputConnections (int port)
	Get the number of inputs currently connected to a port.
int	GetTotalNumberOfInputConnections ()
	Get the total number of inputs for this algorithm.
vtkAlgorithmOutput *	GetInputConnection (int port, int index)
	Get the algorithm output port connected to an input port.
vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
	Returns the algorithm and the output port index of that algorithm connected to a port-index pair.
vtkAlgorithm *	GetInputAlgorithm (int port, int index)
	Returns the algorithm connected to a port-index pair.
vtkAlgorithm *	GetInputAlgorithm ()
	Equivalent to GetInputAlgorithm(0, 0).
vtkExecutive *	GetInputExecutive (int port, int index)
	Returns the executive associated with a particular input connection.
vtkExecutive *	GetInputExecutive ()
	Equivalent to GetInputExecutive(0, 0)
vtkInformation *	GetInputInformation (int port, int index)
	Return the information object that is associated with a particular input connection.
vtkInformation *	GetInputInformation ()
	Equivalent to GetInputInformation(0, 0)
vtkInformation *	GetOutputInformation (int port)
	Return the information object that is associated with a particular output port.
virtual vtkTypeBool	Update (int port, vtkInformationVector *requests)
	This method enables the passing of data requests to the algorithm to be used during execution (in addition to bringing a particular port up-to-date).
virtual vtkTypeBool	Update (vtkInformation *requests)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdatePiece (int piece, int numPieces, int ghostLevels, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdateExtent (const int extents[6])
	Convenience method to update an algorithm after passing requests to its first output port.
virtual int	UpdateTimeStep (double time, int piece=-1, int numPieces=1, int ghostLevels=0, const int extents[6]=nullptr)
	Convenience method to update an algorithm after passing requests to its first output port.
virtual void	UpdateInformation ()
	Bring the algorithm's information up-to-date.
virtual void	UpdateDataObject ()
	Create output object(s).
virtual void	PropagateUpdateExtent ()
	Propagate meta-data upstream.
virtual void	UpdateWholeExtent ()
	Bring this algorithm's outputs up-to-date.
void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
	Convenience routine to convert from a linear ordering of input connections to a port/connection pair.
virtual vtkInformation *	GetInformation ()
	Set/Get the information object associated with this algorithm.
virtual void	SetInformation (vtkInformation *)
	Set/Get the information object associated with this algorithm.
void	Register (vtkObjectBase *o) override
	Participate in garbage collection.
void	UnRegister (vtkObjectBase *o) override
	Participate in garbage collection.
virtual void	SetAbortExecute (vtkTypeBool)
	Set/Get the AbortExecute flag for the process object.
virtual vtkTypeBool	GetAbortExecute ()
	Set/Get the AbortExecute flag for the process object.
virtual void	AbortExecuteOn ()
	Set/Get the AbortExecute flag for the process object.
virtual void	AbortExecuteOff ()
	Set/Get the AbortExecute flag for the process object.
virtual double	GetProgress ()
	Get the execution progress of a process object.
void	SetProgressShiftScale (double shift, double scale)
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
virtual double	GetProgressShift ()
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
virtual double	GetProgressScale ()
	Specify the shift and scale values to use to apply to the progress amount when UpdateProgress is called.
void	SetProgressText (const char *ptext)
	Set the current text message associated with the progress state.
virtual char *	GetProgressText ()
	Set the current text message associated with the progress state.
virtual unsigned long	GetErrorCode ()
	The error code contains a possible error that occurred while reading or writing the file.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
	Set the input data arrays that this algorithm will process.
virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
	Set the connection for the given input port index.
virtual void	SetInputConnection (vtkAlgorithmOutput *input)
	Set the connection for the given input port index.
virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
	Add a connection to the given input port index.
virtual void	AddInputConnection (vtkAlgorithmOutput *input)
	Add a connection to the given input port index.
virtual void	Update (int port)
	Bring this algorithm's outputs up-to-date.
virtual void	Update ()
	Bring this algorithm's outputs up-to-date.
virtual void	SetReleaseDataFlag (int)
	Turn release data flag on or off for all output ports.
virtual int	GetReleaseDataFlag ()
	Turn release data flag on or off for all output ports.
void	ReleaseDataFlagOn ()
	Turn release data flag on or off for all output ports.
void	ReleaseDataFlagOff ()
	Turn release data flag on or off for all output ports.
int	UpdateExtentIsEmpty (vtkInformation *pinfo, vtkDataObject *output)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.
int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
	This detects when the UpdateExtent will generate no data This condition is satisfied when the UpdateExtent has zero volume (0,-1,...) or the UpdateNumberOfPieces is 0.
int *	GetUpdateExtent ()
	These functions return the update extent for output ports that use 3D extents.
int *	GetUpdateExtent (int port)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int extent[6])
	These functions return the update extent for output ports that use 3D extents.
void	GetUpdateExtent (int port, int extent[6])
	These functions return the update extent for output ports that use 3D extents.
int	GetUpdatePiece ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdatePiece (int port)
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateNumberOfPieces ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateNumberOfPieces (int port)
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateGhostLevel ()
	These functions return the update extent for output ports that use piece extents.
int	GetUpdateGhostLevel (int port)
	These functions return the update extent for output ports that use piece extents.
void	SetProgressObserver (vtkProgressObserver *)
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
virtual vtkProgressObserver *	GetProgressObserver ()
	If an ProgressObserver is set, the algorithm will report progress through it rather than directly.
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on.
virtual void	DebugOff ()
	Turn debugging output off.
bool	GetDebug ()
	Get the value of the debug flag.
void	SetDebug (bool debugFlag)
	Set the value of the debug flag.
virtual void	Modified ()
	Update the modification time for this object.
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
vtkTypeBool	HasObserver (unsigned long event)
vtkTypeBool	HasObserver (const char *event)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.
int	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
int	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.
virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.
virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
virtual void	Delete ()
	Delete a VTK object.
virtual void	FastDelete ()
	Delete a reference to this object.
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream.
virtual void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).
int	GetReferenceCount ()
	Return the current reference count of this object.
void	SetReferenceCount (int)
	Sets the reference count.
bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.

Protected Member Functions
	vtkPointSmoothingFilter ()
	~vtkPointSmoothingFilter () override
int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
	This is called by the superclass.
int	FillInputPortInformation (int port, vtkInformation *info) override
	Fill the input port information objects for this algorithm.
Protected Member Functions inherited from vtkPointSetAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkPointSetAlgorithm ()
	~vtkPointSetAlgorithm () override=default
virtual int	RequestDataObject (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
	This is called by the superclass.
virtual int	ExecuteInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
	This is called by the superclass.
virtual int	RequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
	This is called by the superclass.
int	FillOutputPortInformation (int port, vtkInformation *info) override
	Fill the output port information objects for this algorithm.
int	FillInputPortInformation (int port, vtkInformation *info) override
	Fill the input port information objects for this algorithm.
virtual int	ComputeInputUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
	This is called by the superclass.
Protected Member Functions inherited from vtkAlgorithm
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkAlgorithm ()
	~vtkAlgorithm () override
virtual int	FillInputPortInformation (int port, vtkInformation *info)
	Fill the input port information objects for this algorithm.
virtual int	FillOutputPortInformation (int port, vtkInformation *info)
	Fill the output port information objects for this algorithm.
virtual void	SetNumberOfInputPorts (int n)
	Set the number of input ports used by the algorithm.
virtual void	SetNumberOfOutputPorts (int n)
	Set the number of output ports provided by the algorithm.
int	InputPortIndexInRange (int index, const char *action)
int	OutputPortIndexInRange (int index, const char *action)
int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
	Get the assocition of the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
	This method takes in an index (as specified in SetInputArrayToProcess) and a pipeline information vector.
virtual vtkExecutive *	CreateDefaultExecutive ()
	Create a default executive.
void	ReportReferences (vtkGarbageCollector *) override
virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
	Replace the Nth connection on the given input port.
virtual void	SetNumberOfInputConnections (int port, int n)
	Set the number of input connections on the given input port.
void	SetInputDataInternal (int port, vtkDataObject *input)
	These methods are used by subclasses to implement methods to set data objects directly as input.
void	AddInputDataInternal (int port, vtkDataObject *input)
int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
int	GetInputArrayAssociation (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
	Get the actual data array for the input array specified by idx, this is only reasonable during the REQUEST_DATA pass.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
	Filters that have multiple connections on one port can use this signature.
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
	Filters that have multiple connections on one port can use this signature.
virtual void	SetErrorCode (unsigned long)
	The error code contains a possible error that occurred while reading or writing the file.
Protected Member Functions inherited from vtkObject
	vtkObject ()
	~vtkObject () override
void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	ReportReferences (vtkGarbageCollector *)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
int	NeighborhoodSize
int	SmoothingMode
int	NumberOfIterations
int	NumberOfSubIterations
double	MaximumStepSize
double	Convergence
vtkDataArray *	FrameFieldArray
vtkAbstractPointLocator *	Locator
bool	EnableConstraints
double	FixedAngle
double	BoundaryAngle
bool	GenerateConstraintScalars
bool	GenerateConstraintNormals
bool	ComputePackingRadius
double	PackingRadius
double	PackingFactor
double	AttractionFactor
int	MotionConstraint
vtkPlane *	Plane
Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information
double	Progress
char *	ProgressText
vtkProgressObserver *	ProgressObserver
unsigned long	ErrorCode
	The error code contains a possible error that occurred while reading or writing the file.
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers
typedef vtkPointSetAlgorithm	Superclass
	Standard methods for instantiation, obtaining type information, and printing information.
static vtkPointSmoothingFilter *	New ()
	Standard methods for instantiation, obtaining type information, and printing information.
static vtkTypeBool	IsTypeOf (const char *type)
	Standard methods for instantiation, obtaining type information, and printing information.
static vtkPointSmoothingFilter *	SafeDownCast (vtkObjectBase *o)
	Standard methods for instantiation, obtaining type information, and printing information.
virtual vtkTypeBool	IsA (const char *type)
	Standard methods for instantiation, obtaining type information, and printing information.
vtkPointSmoothingFilter *	NewInstance () const
	Standard methods for instantiation, obtaining type information, and printing information.
void	PrintSelf (ostream &os, vtkIndent indent) override
	Standard methods for instantiation, obtaining type information, and printing information.
virtual vtkObjectBase *	NewInstanceInternal () const
	Standard methods for instantiation, obtaining type information, and printing information.

Additional Inherited Members
Static Public Member Functions inherited from vtkPointSetAlgorithm
static vtkPointSetAlgorithm *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkPointSetAlgorithm *	SafeDownCast (vtkObjectBase *o)
Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()
static vtkTypeBool	IsTypeOf (const char *type)
static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)
static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()
	Keys used to specify input port requirements.
static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()
static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()
static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()
static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()
static vtkInformationIntegerKey *	INPUT_PORT ()
static vtkInformationIntegerKey *	INPUT_CONNECTION ()
static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()
	This key tells the executive that a particular output port is capable of producing an arbitrary subextent of the whole extent.
static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()
	Key that tells the pipeline that a particular algorithm can or cannot handle piece request.
static void	SetDefaultExecutivePrototype (vtkExecutive *proto)
	If the DefaultExecutivePrototype is set, a copy of it is created in CreateDefaultExecutive() using NewInstance().
Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.
static void	SetGlobalWarningDisplay (int val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static int	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.
static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.
Public Attributes inherited from vtkAlgorithm
vtkTypeBool	AbortExecute
Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()
Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

adjust point positions to form a pleasing, packed arrangement

vtkPointSmoothingFilter modifies the coordinates of the input points of a vtkPointSet by adjusting their position to create a smooth distribution (and thereby form a pleasing packing of the points). Smoothing is performed by considering the effects of neighboring points on one another. Smoothing in its simplest form (geometric) is simply a variant of Laplacian smoothing where each point moves towards the average position of its neighboring points. Next, uniform smoothing uses a cubic cutoff function to produce repulsive forces between close points and attractive forces that are a little further away. Smoothing can be further controlled either by a scalar field, by a tensor field, or a frame field (the user can specify the nature of the smoothing operation). If controlled by a scalar field, then each input point is assumed to be surrounded by a isotropic sphere scaled by the scalar field; if controlled by a tensor field, then each input point is assumed to be surrounded by an anisotropic, oriented ellipsoid aligned to the the tensor eigenvectors and scaled by the determinate of the tensor. A frame field also assumes a surrounding, ellipsoidal shape except that the inversion of the ellipsoid tensor is already performed. Typical usage of this filter is to perform a smoothing (also referred to as packing) operation (i.e., first execute this filter) and then combine it with a glyph filter (e.g., vtkTensorGlyph or vtkGlyph3D) to visualize the packed points.

Smoothing depends on a local neighborhood of nearby points. In general, the larger the neighborhood size, the greater the reduction in high frequency information. (The memory and/or computational requirements of the algorithm may also significantly increase.) The PackingRadius (and PackingFactor) controls what points are considered close. The PackingRadius can be computed automatically, or specified by the user. (The product of PackingRadius*PackingFactor is referred to as the scaling factor alpha in the paper cited below. This provides a convenient way to combine automatic PackingRadius computation based on average between particle neighborhoods, and then adjust it with the PackingFactor.)

Any vtkPointSet type can be provided as input, and the output will contain the same number of new points each of which is adjusted to a new position.

Note that the algorithm requires the use of a spatial point locator. The point locator is used to build a local neighborhood of the points surrounding each point. It is also used to perform interpolation as the point positions are adjusted.

The algorithm incrementally adjusts the point positions through an iterative process. Basically points are moved due to the influence of neighboring points. Iterations continue until the specified number of iterations is reached, or convergence occurs. Convergence occurs when the maximum displacement of any point is less than the convergence value. As points move, both the local connectivity and data attributes associated with each point must be updated. Rather than performing these expensive operations after every iteration, a number of sub-iterations Si can be specified. If Si > 1, then the neighborhood and attribute value updates occur only every Si'th iteration. Using sub-iterations can improve performance significantly.

Warning

Geometric smoothing defines a one-sided attractive force between particles. Thus particles tend to clump together, and the entire set of points (with enough iterations and appropriate PackingRadius) can converge to a single position. This can be mitigated by turning on point constraints, which limit the movement of "boundary" points.

This class has been loosely inspired by the paper by Kindlmann and Westin "Diffusion Tensor Visualization with Glyph Packing". However, several computational shortcuts, and generalizations have been used for performance and utility reasons.

This class has been threaded with vtkSMPTools. Using TBB or other non-sequential type (set in the CMake variable VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.

See also

vtkTensorWidget vtkTensorGlyph vtkSmoothPolyDataFilter vtkGlyph3D

Definition at line 105 of file vtkPointSmoothingFilter.h.

Member Typedef Documentation

Superclass

typedef vtkPointSetAlgorithm vtkPointSmoothingFilter::Superclass

Standard methods for instantiation, obtaining type information, and printing information.

Definition at line 114 of file vtkPointSmoothingFilter.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Specify how smoothing is to be controlled.

Enumerator
DEFAULT_SMOOTHING
GEOMETRIC_SMOOTHING
UNIFORM_SMOOTHING
SCALAR_SMOOTHING
TENSOR_SMOOTHING
FRAME_FIELD_SMOOTHING

Definition at line 130 of file vtkPointSmoothingFilter.h.

anonymous enum

anonymous enum

Specify how point motion is to be constrained.

Enumerator
UNCONSTRAINED_MOTION
PLANE_MOTION

Definition at line 307 of file vtkPointSmoothingFilter.h.

Constructor & Destructor Documentation

vtkPointSmoothingFilter()

vtkPointSmoothingFilter::vtkPointSmoothingFilter ( )

protected

~vtkPointSmoothingFilter()

vtkPointSmoothingFilter::~vtkPointSmoothingFilter ( )

overrideprotected

Member Function Documentation

New()

static vtkPointSmoothingFilter * vtkPointSmoothingFilter::New ( )

static

Standard methods for instantiation, obtaining type information, and printing information.

IsTypeOf()

static vtkTypeBool vtkPointSmoothingFilter::IsTypeOf ( const char *  type )

static

Standard methods for instantiation, obtaining type information, and printing information.

IsA()

virtual vtkTypeBool vtkPointSmoothingFilter::IsA ( const char *  type )

virtual

Standard methods for instantiation, obtaining type information, and printing information.

Reimplemented from vtkPointSetAlgorithm.

SafeDownCast()

static vtkPointSmoothingFilter * vtkPointSmoothingFilter::SafeDownCast ( vtkObjectBase *  o )

static

Standard methods for instantiation, obtaining type information, and printing information.

NewInstanceInternal()

virtual vtkObjectBase * vtkPointSmoothingFilter::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for instantiation, obtaining type information, and printing information.

Reimplemented from vtkPointSetAlgorithm.

NewInstance()

vtkPointSmoothingFilter * vtkPointSmoothingFilter::NewInstance

(

)

const

Standard methods for instantiation, obtaining type information, and printing information.

PrintSelf()

void vtkPointSmoothingFilter::PrintSelf ( ostream &  os, vtkIndent  indent  )

overridevirtual

Standard methods for instantiation, obtaining type information, and printing information.

Reimplemented from vtkPointSetAlgorithm.

SetNeighborhoodSize()

virtual void vtkPointSmoothingFilter::SetNeighborhoodSize ( int  )

virtual

Specify the neighborhood size.

This controls the number of surrounding points that can affect a point to be smoothed.

GetNeighborhoodSize()

virtual int vtkPointSmoothingFilter::GetNeighborhoodSize ( )

virtual

Specify the neighborhood size.

This controls the number of surrounding points that can affect a point to be smoothed.

SetSmoothingMode()

virtual void vtkPointSmoothingFilter::SetSmoothingMode ( int  )

virtual

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

GetSmoothingMode()

virtual int vtkPointSmoothingFilter::GetSmoothingMode ( )

virtual

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

SetSmoothingModeToDefault()

void vtkPointSmoothingFilter::SetSmoothingModeToDefault ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 153 of file vtkPointSmoothingFilter.h.

SetSmoothingModeToGeometric()

void vtkPointSmoothingFilter::SetSmoothingModeToGeometric ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 154 of file vtkPointSmoothingFilter.h.

SetSmoothingModeToUniform()

void vtkPointSmoothingFilter::SetSmoothingModeToUniform ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 155 of file vtkPointSmoothingFilter.h.

SetSmoothingModeToScalars()

void vtkPointSmoothingFilter::SetSmoothingModeToScalars ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 156 of file vtkPointSmoothingFilter.h.

SetSmoothingModeToTensors()

void vtkPointSmoothingFilter::SetSmoothingModeToTensors ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 157 of file vtkPointSmoothingFilter.h.

SetSmoothingModeToFrameField()

void vtkPointSmoothingFilter::SetSmoothingModeToFrameField ( )

inline

Control how smoothing is to be performed.

By default, if a point frame field is available then frame field smoothing will be performed; then if point tensors are available then anisotropic tensor smoothing will be used; the next choice is to use isotropic scalar smoothing; and finally if no frame field, tensors, or scalars are available, uniform smoothing will be used. If both scalars, tensors, and /or a frame field are present, the user can specifiy which to use; or to use uniform or geometric smoothing.

Definition at line 158 of file vtkPointSmoothingFilter.h.

SetFrameFieldArray()

virtual void vtkPointSmoothingFilter::SetFrameFieldArray ( vtkDataArray *  )

virtual

Specify the name of the frame field to use for smoothing.

This information is only necessary if a frame field smoothing is enabled.

GetFrameFieldArray()

virtual vtkDataArray * vtkPointSmoothingFilter::GetFrameFieldArray ( )

virtual

Specify the name of the frame field to use for smoothing.

This information is only necessary if a frame field smoothing is enabled.

SetNumberOfIterations()

virtual void vtkPointSmoothingFilter::SetNumberOfIterations ( int  )

virtual

Specify the number of smoothing iterations.

GetNumberOfIterations()

virtual int vtkPointSmoothingFilter::GetNumberOfIterations ( )

virtual

Specify the number of smoothing iterations.

SetNumberOfSubIterations()

virtual void vtkPointSmoothingFilter::SetNumberOfSubIterations ( int  )

virtual

Specify the number of smoothing subiterations.

This specifies the frequency of connectivity and data attribute updates.

GetNumberOfSubIterations()

virtual int vtkPointSmoothingFilter::GetNumberOfSubIterations ( )

virtual

Specify the number of smoothing subiterations.

This specifies the frequency of connectivity and data attribute updates.

SetMaximumStepSize()

virtual void vtkPointSmoothingFilter::SetMaximumStepSize ( double  )

virtual

Specify the maximum smoothing step size for each smoothing iteration.

This step size limits the the distance over which a point can move in each iteration. As in all iterative methods, the stability of the process is sensitive to this parameter. In general, small step size and large numbers of iterations are more stable than a larger step size and a smaller numbers of iterations.

GetMaximumStepSize()

virtual double vtkPointSmoothingFilter::GetMaximumStepSize ( )

virtual

Specify the maximum smoothing step size for each smoothing iteration.

This step size limits the the distance over which a point can move in each iteration. As in all iterative methods, the stability of the process is sensitive to this parameter. In general, small step size and large numbers of iterations are more stable than a larger step size and a smaller numbers of iterations.

SetConvergence()

virtual void vtkPointSmoothingFilter::SetConvergence ( double  )

virtual

Specify a convergence criterion for the iteration process.

Smaller numbers result in more smoothing iterations.

GetConvergence()

virtual double vtkPointSmoothingFilter::GetConvergence ( )

virtual

Specify a convergence criterion for the iteration process.

Smaller numbers result in more smoothing iterations.

SetEnableConstraints()

virtual void vtkPointSmoothingFilter::SetEnableConstraints ( bool  )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

GetEnableConstraints()

virtual bool vtkPointSmoothingFilter::GetEnableConstraints ( )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

EnableConstraintsOn()

virtual void vtkPointSmoothingFilter::EnableConstraintsOn ( )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

EnableConstraintsOff()

virtual void vtkPointSmoothingFilter::EnableConstraintsOff ( )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

SetFixedAngle()

virtual void vtkPointSmoothingFilter::SetFixedAngle ( double  )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

GetFixedAngle()

virtual double vtkPointSmoothingFilter::GetFixedAngle ( )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

SetBoundaryAngle()

virtual void vtkPointSmoothingFilter::SetBoundaryAngle ( double  )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

GetBoundaryAngle()

virtual double vtkPointSmoothingFilter::GetBoundaryAngle ( )

virtual

Enable or disable constraints on points.

Point constraints are used to prevent points from moving, or to move only on a plane. This can prevent shrinking or growing point clouds. If enabled, a local topological anlysis is performed to determine whether a point should be marked "Fixed" i.e., never moves; "Plane", the point only moves on a plane; or "Unconstrained", the point can move freely. If all points in the neighborhood surrounding a point are in the cone defined by FixedAngle, then the point is classified "Fixed." If all points in the neighborhood surrounding a point are in the cone defined by BoundaryAngle, then the point is classified "Plane." (The angles are expressed in degrees.)

SetGenerateConstraintScalars()

virtual void vtkPointSmoothingFilter::SetGenerateConstraintScalars ( bool  )

virtual

If point constraints are enabled, an output scalar indicating the classification of points can be generated.

GetGenerateConstraintScalars()

virtual bool vtkPointSmoothingFilter::GetGenerateConstraintScalars ( )

virtual

If point constraints are enabled, an output scalar indicating the classification of points can be generated.

GenerateConstraintScalarsOn()

virtual void vtkPointSmoothingFilter::GenerateConstraintScalarsOn ( )

virtual

If point constraints are enabled, an output scalar indicating the classification of points can be generated.

GenerateConstraintScalarsOff()

virtual void vtkPointSmoothingFilter::GenerateConstraintScalarsOff ( )

virtual

If point constraints are enabled, an output scalar indicating the classification of points can be generated.

SetGenerateConstraintNormals()

virtual void vtkPointSmoothingFilter::SetGenerateConstraintNormals ( bool  )

virtual

If point constraints are enabled, an output vector indicating the average normal at each point can be generated.

GetGenerateConstraintNormals()

virtual bool vtkPointSmoothingFilter::GetGenerateConstraintNormals ( )

virtual

If point constraints are enabled, an output vector indicating the average normal at each point can be generated.

GenerateConstraintNormalsOn()

virtual void vtkPointSmoothingFilter::GenerateConstraintNormalsOn ( )

virtual

If point constraints are enabled, an output vector indicating the average normal at each point can be generated.

GenerateConstraintNormalsOff()

virtual void vtkPointSmoothingFilter::GenerateConstraintNormalsOff ( )

virtual

If point constraints are enabled, an output vector indicating the average normal at each point can be generated.

SetComputePackingRadius()

virtual void vtkPointSmoothingFilter::SetComputePackingRadius ( bool  )

virtual

Enable / disable the computation of a packing radius.

By default, a packing radius is computed as one half of the average distance between neighboring points. (Point neighbors are defined by the neighborhood size.)

GetComputePackingRadius()

virtual bool vtkPointSmoothingFilter::GetComputePackingRadius ( )

virtual

Enable / disable the computation of a packing radius.

By default, a packing radius is computed as one half of the average distance between neighboring points. (Point neighbors are defined by the neighborhood size.)

ComputePackingRadiusOn()

virtual void vtkPointSmoothingFilter::ComputePackingRadiusOn ( )

virtual

Enable / disable the computation of a packing radius.

By default, a packing radius is computed as one half of the average distance between neighboring points. (Point neighbors are defined by the neighborhood size.)

ComputePackingRadiusOff()

virtual void vtkPointSmoothingFilter::ComputePackingRadiusOff ( )

virtual

Enable / disable the computation of a packing radius.

By default, a packing radius is computed as one half of the average distance between neighboring points. (Point neighbors are defined by the neighborhood size.)

SetPackingRadius()

virtual void vtkPointSmoothingFilter::SetPackingRadius ( double  )

virtual

Specify the packing radius R.

This only takes effect if ComputePackingRadius is off. Note that the for two points separated by radius r, a repulsive force is generated when 0<=r<=R, and a repulsive force when R<=r<=(1+AttractionFactor*R). By default, the PackingRadius is automatically computed, but when ComputePackingRadius is off, then manually setting the PackingRadius is allowed. Note that the PackingRadius is updated after the algorithm runs (useful to examine the computed packing radius).

GetPackingRadius()

virtual double vtkPointSmoothingFilter::GetPackingRadius ( )

virtual

Specify the packing radius R.

This only takes effect if ComputePackingRadius is off. Note that the for two points separated by radius r, a repulsive force is generated when 0<=r<=R, and a repulsive force when R<=r<=(1+AttractionFactor*R). By default, the PackingRadius is automatically computed, but when ComputePackingRadius is off, then manually setting the PackingRadius is allowed. Note that the PackingRadius is updated after the algorithm runs (useful to examine the computed packing radius).

SetPackingFactor()

virtual void vtkPointSmoothingFilter::SetPackingFactor ( double  )

virtual

Specify the packing factor.

Larger numbers tend to loosen the overall packing of points. Note however that if the point density in a region is high, then the packing factor may have little effect (due to mutual inter-particle constraints). The default value is 1.0. (Note that a characteristic inter-particle radius R is computed at the onset of the algorithm (or can be manually specified). Within 0<=r<=R*PackingFactor a repulsive force is generated.)

GetPackingFactor()

virtual double vtkPointSmoothingFilter::GetPackingFactor ( )

virtual

Specify the packing factor.

Larger numbers tend to loosen the overall packing of points. Note however that if the point density in a region is high, then the packing factor may have little effect (due to mutual inter-particle constraints). The default value is 1.0. (Note that a characteristic inter-particle radius R is computed at the onset of the algorithm (or can be manually specified). Within 0<=r<=R*PackingFactor a repulsive force is generated.)

SetAttractionFactor()

virtual void vtkPointSmoothingFilter::SetAttractionFactor ( double  )

virtual

Control the relative distance of inter-particle attraction.

A value of 1.0 means that the radius of the attraction region is the same as the radius of repulsion. By default, a value of 0.5 is used (e.g., in the region 0<=r<=R a repulsive force is generated, while in R<r<=R*1.5 an attractive force is generated).

GetAttractionFactor()

virtual double vtkPointSmoothingFilter::GetAttractionFactor ( )

virtual

Control the relative distance of inter-particle attraction.

A value of 1.0 means that the radius of the attraction region is the same as the radius of repulsion. By default, a value of 0.5 is used (e.g., in the region 0<=r<=R a repulsive force is generated, while in R<r<=R*1.5 an attractive force is generated).

SetMotionConstraint()

virtual void vtkPointSmoothingFilter::SetMotionConstraint ( int  )

virtual

Specify how to constrain the motion of points.

By default, point motion is unconstrained. Points can also be constrained to a plane. If constrained to a plane, then an instance of vtkPlane must be specified.

GetMotionConstraint()

virtual int vtkPointSmoothingFilter::GetMotionConstraint ( )

virtual

Specify how to constrain the motion of points.

By default, point motion is unconstrained. Points can also be constrained to a plane. If constrained to a plane, then an instance of vtkPlane must be specified.

SetMotionConstraintToUnconstrained()

void vtkPointSmoothingFilter::SetMotionConstraintToUnconstrained ( )

inline

Specify how to constrain the motion of points.

By default, point motion is unconstrained. Points can also be constrained to a plane. If constrained to a plane, then an instance of vtkPlane must be specified.

Definition at line 321 of file vtkPointSmoothingFilter.h.

SetMotionConstraintToPlane()

void vtkPointSmoothingFilter::SetMotionConstraintToPlane ( )

inline

Specify how to constrain the motion of points.

By default, point motion is unconstrained. Points can also be constrained to a plane. If constrained to a plane, then an instance of vtkPlane must be specified.

Definition at line 322 of file vtkPointSmoothingFilter.h.

SetPlane()

void vtkPointSmoothingFilter::SetPlane

(

vtkPlane *

)

Specify the plane to which point motion is constrained.

Only required if MotionConstraint is set to UNCONSTRAINED_MOTION.

GetPlane()

virtual vtkPlane * vtkPointSmoothingFilter::GetPlane ( )

virtual

Specify the plane to which point motion is constrained.

Only required if MotionConstraint is set to UNCONSTRAINED_MOTION.

SetLocator()

void vtkPointSmoothingFilter::SetLocator

(

vtkAbstractPointLocator *

locator

)

Specify a point locator.

By default a vtkStaticPointLocator is used. The locator performs efficient searches to locate points around a sample point.

GetLocator()

virtual vtkAbstractPointLocator * vtkPointSmoothingFilter::GetLocator ( )

virtual

Specify a point locator.

By default a vtkStaticPointLocator is used. The locator performs efficient searches to locate points around a sample point.

RequestData()

int vtkPointSmoothingFilter::RequestData ( vtkInformation *  , vtkInformationVector **  , vtkInformationVector *    )

overrideprotectedvirtual

This is called by the superclass.

This is the method you should override.

Reimplemented from vtkPointSetAlgorithm.

FillInputPortInformation()

int vtkPointSmoothingFilter::FillInputPortInformation ( int  port, vtkInformation *  info  )

overrideprotectedvirtual

Fill the input port information objects for this algorithm.

This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkPointSetAlgorithm.

Member Data Documentation

NeighborhoodSize

int vtkPointSmoothingFilter::NeighborhoodSize

protected

Definition at line 349 of file vtkPointSmoothingFilter.h.

SmoothingMode

int vtkPointSmoothingFilter::SmoothingMode

protected

Definition at line 350 of file vtkPointSmoothingFilter.h.

NumberOfIterations

int vtkPointSmoothingFilter::NumberOfIterations

protected

Definition at line 351 of file vtkPointSmoothingFilter.h.

NumberOfSubIterations

int vtkPointSmoothingFilter::NumberOfSubIterations

protected

Definition at line 352 of file vtkPointSmoothingFilter.h.

MaximumStepSize

double vtkPointSmoothingFilter::MaximumStepSize

protected

Definition at line 353 of file vtkPointSmoothingFilter.h.

Convergence

double vtkPointSmoothingFilter::Convergence

protected

Definition at line 354 of file vtkPointSmoothingFilter.h.

FrameFieldArray

vtkDataArray* vtkPointSmoothingFilter::FrameFieldArray

protected

Definition at line 355 of file vtkPointSmoothingFilter.h.

Locator

vtkAbstractPointLocator* vtkPointSmoothingFilter::Locator

protected

Definition at line 358 of file vtkPointSmoothingFilter.h.

EnableConstraints

bool vtkPointSmoothingFilter::EnableConstraints

protected

Definition at line 361 of file vtkPointSmoothingFilter.h.

FixedAngle

double vtkPointSmoothingFilter::FixedAngle

protected

Definition at line 362 of file vtkPointSmoothingFilter.h.

BoundaryAngle

double vtkPointSmoothingFilter::BoundaryAngle

protected

Definition at line 363 of file vtkPointSmoothingFilter.h.

GenerateConstraintScalars

bool vtkPointSmoothingFilter::GenerateConstraintScalars

protected

Definition at line 364 of file vtkPointSmoothingFilter.h.

GenerateConstraintNormals

bool vtkPointSmoothingFilter::GenerateConstraintNormals

protected

Definition at line 365 of file vtkPointSmoothingFilter.h.

ComputePackingRadius

bool vtkPointSmoothingFilter::ComputePackingRadius

protected

Definition at line 368 of file vtkPointSmoothingFilter.h.

PackingRadius

double vtkPointSmoothingFilter::PackingRadius

protected

Definition at line 369 of file vtkPointSmoothingFilter.h.

PackingFactor

double vtkPointSmoothingFilter::PackingFactor

protected

Definition at line 370 of file vtkPointSmoothingFilter.h.

AttractionFactor

double vtkPointSmoothingFilter::AttractionFactor

protected

Definition at line 371 of file vtkPointSmoothingFilter.h.

MotionConstraint

int vtkPointSmoothingFilter::MotionConstraint

protected

Definition at line 374 of file vtkPointSmoothingFilter.h.

Plane

vtkPlane* vtkPointSmoothingFilter::Plane

protected

Definition at line 375 of file vtkPointSmoothingFilter.h.

---

The documentation for this class was generated from the following file:

• Filters/Points/vtkPointSmoothingFilter.h